[chrome.displaySource] Use WDS for Wi-Fi Display implementation

extensions/browser/BUILD.gn

Index: extensions/browser/BUILD.gn
diff --git a/extensions/browser/BUILD.gn b/extensions/browser/BUILD.gn
index 5665b9d5f4e7613df5f09149397b8cdfb4530e7d..e044a7a89128d21ba12ffcf2bc92bcfc89aef762 100644
--- a/extensions/browser/BUILD.gn
+++ b/extensions/browser/BUILD.gn
@@ -101,6 +101,13 @@ source_set("browser") {
           sources += win_or_mac_sources
         }
       }
+      if (enable_wifi_display) {
+        wifi_display_sources = rebase_path(
+                extensions_gypi_values.extensions_browser_sources_wifi_display,
+                ".",
+                "//extensions")
+        sources += wifi_display_sources
+      }
     }
   }
 }